Dewi Sartika
Syiah Kuala University

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Teaching speaking using the Information Gap technique Dewi Sartika
English Education Journal Vol 7, No 3 (2016): English Education Journal (EEJ)
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (562.322 KB)

Abstract

This study was aimed at finding out if there would be a significant difference in achievement between students who were taught speaking using the Information Gap technique and those who were taught speaking by conventional methods, and finding out which speaking sub skills would be most improved by using the Information Gap technique with eighth grade students at Islamic boarding school SMP IT Daruzzahidin, Aceh Besar. It employed a true experimental design in which there were two classes; one the experimental group (EG) and the other the control group (CG) that each had 30 students. The data was collected through quantitative and qualitative methods. The quantitative data was obtained from the results of the pre-tests and post-tests of the students’ speaking. The qualitative data was obtained from the results of the students’ speaking proficiency improvement. The results of the quantitative data showed that the mean of the post-test scores of the experimental group was 82 while the mean of the post-test scores of the control group was 70. T-test result of the t-test was 4.68 while the results showed that the students taught by using the information gap technique achieved significantly better performances than those who were taught speaking by using the conventional method. Meanwhile, the data analysis from the students’ speaking proficiency showed that the students’ speaking proficiency had improved by more than 20% for all five aspects: pronunciation, grammar, lexical, speaker’s intentions, and general meaning.  Thus it was shown that the experimental group achieved a significant improvement in their speaking proficiency.
Hydrogeochemical characteristics analysis of groundwater along coastal area of Ujong Pancu, Aceh Besar regency Akmal Muhni; Alfi Syahrin; Dina Gunarsih; Dewi Sartika; Muhammad Ridha Adhari; Tika Hapsari; Zakia Masrurah; Muzakir Zainal; Fajar Fakri
GEOGRAPHIA: Jurnal Penelitian dan Pendidikan Geografi Vol. 7 No. 1 (2026): June
Publisher : Jurusan Pendidikan Geografi, Fakultas Ilmu Sosial dan Hukum, Universitas Negeri Manado

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53682/s1pmq723

Abstract

Groundwater is the primary source of fresh water for communities in the coastal area of Ujong Pancu, Peukan Bada, Aceh Besar. However, limited assessments of its suitability for domestic use, combined with geological conditions dominated by high-porosity alluvial deposits (Qh), increase its vulnerability to contamination. Therefore, this study aims to analyze the hydrogeochemical characteristics and evolution of groundwater and to identify the controlling geochemical processes. A total of 10 groundwater samples were collected from dug wells and analyzed for major cations (Na, K, Ca, and Mg) and anions (Cl, SO₄, and HCO₃). The results were interpreted using Stiff and Piper diagrams to determine hydrochemical facies and groundwater evolution. The results show that groundwater is dominated by Ca–Mg–HCO₃, mixed facies, and Na–HCO₃–SO₄. The evolution of groundwater chemistry indicates carbonate mineral dissolution and cation exchange processes, in which Ca–Mg is progressively replaced by Na along the groundwater flow path. Several samples exhibit balanced Ca and HCO₃ concentrations, indicating meteoric water characteristics. In conclusion, groundwater hydrogeochemistry in the Ujong Pancu coastal area is primarily controlled by water–rock interaction and internal aquifer processes.